[INFO] cloning repository https://github.com/hkjeon13/Korean-Processor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hkjeon13/Korean-Processor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhkjeon13%2FKorean-Processor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhkjeon13%2FKorean-Processor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 968f1672a9810eff3985d28a38a5c6dce13e153a
[INFO] testing hkjeon13/Korean-Processor against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhkjeon13%2FKorean-Processor" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hkjeon13/Korean-Processor on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hkjeon13/Korean-Processor
[INFO] finished tweaking git repo https://github.com/hkjeon13/Korean-Processor
[INFO] tweaked toml for git repo https://github.com/hkjeon13/Korean-Processor written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/hkjeon13/Korean-Processor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bac17e78aa8b9bf521873cf7323d67727f4e2db84a5c284ec352cb3b20ab8f22
[INFO] running `Command { std: "docker" "start" "-a" "bac17e78aa8b9bf521873cf7323d67727f4e2db84a5c284ec352cb3b20ab8f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bac17e78aa8b9bf521873cf7323d67727f4e2db84a5c284ec352cb3b20ab8f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac17e78aa8b9bf521873cf7323d67727f4e2db84a5c284ec352cb3b20ab8f22", kill_on_drop: false }`
[INFO] [stdout] bac17e78aa8b9bf521873cf7323d67727f4e2db84a5c284ec352cb3b20ab8f22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ef044a6a9ee7b3a34b8e249cbe4c653787e8102cf7ac246c7e737852a62da17
[INFO] running `Command { std: "docker" "start" "-a" "8ef044a6a9ee7b3a34b8e249cbe4c653787e8102cf7ac246c7e737852a62da17", kill_on_drop: false }`
[INFO] [stderr]    Compiling Korean-Processor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator`, `Map`
[INFO] [stdout]  --> src/spacing.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::{Map, FromIterator};
[INFO] [stdout]   |                 ^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/spacing.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Vec<[char; 3]>` is not an iterator
[INFO] [stdout]    --> src/main.rs:10:31
[INFO] [stdout]     |
[INFO] [stdout] 10  |       let composed = decomposed.map(|x| utils::assemble(x));
[INFO] [stdout]     |                                 ^^^ `Vec<[char; 3]>` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Vec<[char; 3]>: Iterator`
[INFO] [stdout]             which is required by `&mut Vec<[char; 3]>: Iterator`
[INFO] [stdout]             `[[char; 3]]: Iterator`
[INFO] [stdout]             which is required by `&mut [[char; 3]]: Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Korean-Processor` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8ef044a6a9ee7b3a34b8e249cbe4c653787e8102cf7ac246c7e737852a62da17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef044a6a9ee7b3a34b8e249cbe4c653787e8102cf7ac246c7e737852a62da17", kill_on_drop: false }`
[INFO] [stdout] 8ef044a6a9ee7b3a34b8e249cbe4c653787e8102cf7ac246c7e737852a62da17